Mesoporous Iron Oxide Nanoparticle-Decorated Graphene Oxide Catalysts for Fischer–Tropsch Synthesis

作者：Yuxue Wei, Linlin Yan, Caiping Ma, Chenghua Zhang, Song Sun, Xiaodong Wen, Yong Yang, Yongwang Li · 发表于：ACS Applied Nano Materials · 年份：2020 · DOI：10.1021/acsanm.0c01522 · 被引用次数：29 · 研究领域：Catalysts for Methane Reforming、Catalytic Processes in Materials Science、Catalysis for Biomass Conversion

Hierarchically mesoporous iron oxide/graphene oxide (GO) composites have been synthesized by a facile, one-step hydrothermal method and utilized as Fischer–Tropsch synthesis (FTS) catalysts. The catalysts show intriguing hierarchical pore structure with a large surface area, a high porosity, weaker Fe–GO interaction, easier reduction, and carburization behaviors. The presence of hierarchical pore structure increases the number of catalytic active sites and promotes the mass transfer of reactants and products. Consequently, a high CO conversion (83–90%), a high C 5+ selectivity (67–71%), and a high olefin:paraffin ratio (4.9–5.5) of the catalysts are achieved. This study highlights the advantage of the hierarchical pore structure of FTS catalysts.